Combination gas-burner and electric gas-igniter.



Patented Oct. 8, 1912.

IH Hlll l/VVE/VTOR D. GrinneH Harold ATTORNEYS H. D. GRINNELL.

COMBINATION GAS BURNER AND ELECTRIC GAS IGNITER.

APPLICATION FILED JUNE 6, 1912.

WITNESSES COLUMBIA PLANDGRAPH CO-IWASHINOTON, D. c.

HAROLD D. GRINNELL, OF PITTSFIELD, MASSACHUSETTS.

COMBINATION GAS-BURNER AND ELECTRIC GAS-IGNITER.

Specification of Letters Patent.

Patented Oct. 8, 1912.

Application filed June 6, 1912. Serial No. 702,038.

To all whom it may concern:

Be itknown that I, HAROLD D. GRINNELL, a citizen of the United States,and a resident of Pittsfield, in the county of Berkshire and State ofMassachusetts, have invented a new and Improved Combination Gas-Burnerand Electric Gas-Igniter, of which the following is a full, clear, andexact description.

The object of the invention is to provide a new and improved combinationgas burner and electric gas igniter designed for use on acetylene orother gas lamps employed for illuminating purposes on automobiles andother places, and arranged to prevent the electric wires from beingdisturbed and to insure a proper transmission of the electricity to theelectrodes employed for producing a spark in the path of the gas issuingfrom the burner of the lamp to ignite the said gas whenever it isdesired to use the lamp for illuminating purposes. In order toaccomplish the desired result use is made of a burner tube of aninsulated material and provided with a burner at one end and connectedat the other end with a gas supply electric wires embedded in the saidtube and terminating in electrodes extending on opposite sides of aburner orifice, contact plates embedded in the said burner tube and towhich the said wires are secured, and a sleeve slidably held on theburner tube and adapted to receive the ends of lines of wires forengagement with the said contact plates.

A practical embodiment of the invention is represented in theaccompanying drawings forming a part of this specification, in whichsimilar characters of reference inclicate corresponding parts in all.the views.

Figure 1 is a sectional elevation of the combination gas burner andelectric gas igniter, parts being in. elevation; Fig. 2 is a crosssection of the same, parts being in ele vation; Fig. 3 is a plan view ofthe same; Fig. 4 is a sectional plan View of the same on the line 4.-4of Fig. 1; and Fig. 5 is a similar View of the same on the line 55 ofFig. 1.

A burner tube A of an insulated material, such as porcelain, hard rubberand the like, supports at its upper end a burner B of lava or the like,and in the form of an acetylene gas burner, as indicated in thedrawings. In the lower end of the burner tube A is embedded a metal tubeC projecting below the lower end of the tube to permit of convenientlymaking a connection with the source of gas supply by a hose tube orother similar connection. The burner tube A is provided at its lower endwith an annular flange A seated on the upper surface of the lamp cas ingD provided with an oblong opening D through which extends the lower orbase end A of the burner tube A and which base end A is of polygonalshape corresponding to the opening D so that the tube A is held againstturning on the lamp casing D. The burner tube A is provided at its sideswith integral ribs A A in which are embedded wires E, E extending beyondthe upper ends of the tube A to form electrodes E, E having their endsarranged on opposite sides of one of the burner orifices B so that whena spark is had between the electrodes and gas issues out of the orificeB then such gas is ignited. The lower ends of the wires E and Eterminate in angular extensions E, E secured to contact plates F and Fembedded in the base end A of the burner tube A at opposite sidesthereof so that the outer faces of the base F and F are flush with thecorresponding sides of the base end A as will be readily understood byreference to Figs. 2 and A sleeve Gr having a polygonal port-ion Gcorresponding to the polygonal end A of the tube A is mounted to slideon the end A and abuts against the under side of thecasing D, and on thelower threaded end A of the base end A screws a nut I-I against theunder side of the sleeve G so as to force the same upward in firmcontact with the lamp casing D to securely fasten the burner tube A inposition on the lamp casing B. The sleeve G is made of insulatingmaterial and is provided on opposite sides with bosses G G recessed forreceiving the insulations I, I of the line wires J, J, and which linewires J, J have their ends J J 3 extended through apertures G, G formedin the sleeve G directly opposite the contact plates F and F. The lowerend of the portion G in the sleeve G is somewhat enlarged for thereception'of the ends J and J as plainly indicated in Fig. 2, to permitof bending the said ends with a view to insure firm contact with thecontact plates F and F at the time the sleeve Gr is placed in positionon the base end A of the burner tube, and is moved to final position onscrewing up the nut H.

By the arrangement described the connections of the line wires J, J withthe contact plates F, F and the connections of the latter with theelectric wires E, E is wholly within the burner tube and its sleeve Gand consequently said connect-ions, contact plates and wires are notliable to be disturbed by outside influences, and only the electrodes Eand E project to the outside at the burner B for the purpose previouslymentioned.

The combination gas burner and electric gas igniter shown and describedis very simple and durable in construction and the parts can be readilyassembled and placed in position on the lamp casing in the manner aboveset forth.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

1. A combination gas burner and electric gas igniter, comprising aburner tube of an insulated material, a burner held on the said tube,electric wires embedded in the said tube and terminating in electrodesextending on opposite sides of a burner orifice, contact plates embeddedin the said burner tube and to which the said wires are attached, and asleeve slidable on the burner tube and adapted to receive the ends ofthe line wires for engagement with the said contact plates.

2. A. combination gas burner and electric gas igniter, comprising aburner tube arranged for connection at its entrance end with a source ofgas supply and provided at its other end with a burner, wires embeddedin the wall of the said tube and terminating in electrodes having theirends on opposite sides of a burner orifice, contact plates. embedded inthe entrance end of the said tube and to which the said wires aresecured, and

a sleeve slidable on the entrance end of the tube and provided withapertured bosses for the reception of conductors, the bosses being inregister with the said contact plates and the said bosses being adaptedto receive electrical conductors for engagement with the said plates.

3. In a combination gas burner and electric gas igniter, the combinationwith a lamp casing having an opening, of a burner tube having a flangeand a polygonal base passing through the said casing opening, the saidflange being seated on the top of the said casing, a burner on the upperend of the said tube, wires embedded in the wall of the said tube andhaving their upper ends extended onto the said burner to form electrodeson opposite sides of a burner orifice, contact plates embedded in thebase of the tube and to which the lower ends of the said wires areattached, a sleeve having a poly onal bore slidingly fitting onto thebase of the tube and abutting against the under side of the lamp casing,the said sleeve having apertures in register with the said contactplates, the apertures being adapted to receive the ends of line wires tocontact with the said contact plates, and a nut screwing on the lowerend of thesaid base and against the said sleeve.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

HAROLD D. GRINNELL.

Witnesses MARY K. MURPHY, NnLsoN A. Foor.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

